Is the following a function? Each student’s unique identification number is paired with his or her grade level.
A) No, because not all students will have an identification number.
B) No, because more than one student will be paired with the same grade level.
C) Yes, because each student’s identification number is unique and will be paired with just one grade level.
D) Not enough information is given.

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Indicate the formula for the following conditions: p^c(n,r)=